Question

The least value must be given to $x$ so that the number $91876x2$ is divisible by 8 is ____ .

• A. 1
• B. 2
• C. 3
• D. 4

Answer 1

The correct option is C 3

Divisibility Test for $8$ :

$\to$ For a number to be divisible by $8$, last three digits should also be divisible by $8$

Here, for $91876x2$ to be divisible by $8$,

$\to 6x2$ should be divisible by $8$

When $x=1$, $612\to$ Not Divisible

When $x=2$, $622\to$ Not Divisible

When $x=3$, $632\to$ Divisible

$\therefore 3$ is the least possible value of $x$